Home / 53,689.44-80,534.22-20,401.68

Finding the Fourth Proportional to 53,689.44, 80,534.22 and 20,401.68

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Solution

The fourth proportional to 53,689.44, 80,534.22 and 20,401.68 is: 30,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,689.44 : 80,534.22 = 20,401.68 : x
  2. Step 2: Convert to fraction form
    53,689.44/80,534.22 = 20,401.68/x
  3. Step 3: Cross multiply
    53,689.44x = 80,534.22 × 20,401.68
  4. Step 4: Simplify right side
    53,689.44x = 1,643,033,385.49
  5. Step 5: Solve for x
    x = 1,643,033,385.49/53,689.44
  6. Step 6: Final answer
    x = 30,602.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.